Trying to get Kconfig to work

There's something wrong with the importing part I think

components/dht22/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "dht22.c"
+  INCLUDE_DIRS "."
+  REQUIRES driver)

components/dht22/Kconfig.projbuild

@@ -0,0 +1,6 @@
+menu "DHT22"
+    config DHT22_DATA_GPIO
+        int "DHT22 Data GPIO Pin"
+        default -1
+
+endmenu

components/dht22/dht22.c

@@ -0,0 +1,15 @@
+#include "dht22.h"
+
+#define DATA_GPIO CONFIG_DHT22_DATA_GPIO
+
+#if DATA_GPIO == -1
+#error "Please define your DHT22 GPIO Data Pin"
+#endif /* CONFIG_DHT22_DATA_GPIO == -1 */
+
+dht22_error dht_read() {
+  return DHT_OK;
+}
+
+int dht_temperature() {
+  return DATA_GPIO;
+}

components/dht22/dht22.h

@@ -0,0 +1,10 @@
+#pragma once
+
+typedef enum {
+  DHT_OK
+} dht22_error;
+
+int dht_temperature();
+dht22_error dht_read();
+
+